72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
#pragma once
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#ifndef T_L2LAUTOCLOSER_H
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#define T_L2LAUTOCLOSER_H
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#include <memory>
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#include "tgeometry.h"
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#undef DVAPI
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#undef DVVAR
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#ifdef TVECTORIMAGE_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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#ifdef _WIN32
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#pragma warning(disable : 4251)
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#endif
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// forward declaration
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class TStroke;
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//-----------------------------------------------------------------------------
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//! Line-to-line autocloser
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class DVAPI TL2LAutocloser {
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class Imp;
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std::unique_ptr<Imp> m_imp;
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public:
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TL2LAutocloser();
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~TL2LAutocloser();
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struct Segment {
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//! the segments returned by the Line-to-line autocloser
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TStroke *stroke0, *stroke1; // the two involved strokes
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double w0, w1; // the w-parameters
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TThickPoint p0, p1; // the related points
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double dist2; // the (squared) points distance
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};
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//! segments longer than sqrt(dist2) are not considered. the default is 50^2
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void setMaxDistance2(double dist2);
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double getMaxDistance2() const;
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//! search line-to-line autoclosing segments.
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//! Note: it computes and caches some information about stroke0 and stroke1
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//! you are not supposed to change strokes between two subsequent calls to
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//! search()
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void search(std::vector<Segment> &segments, TStroke *stroke0,
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TStroke *stroke1);
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//! use this method if you have already computed the intersections
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void search(std::vector<Segment> &segments, TStroke *stroke0,
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TStroke *stroke1, const std::vector<DoublePair> &intersection);
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//! debug only. show the internal state related to the last performed search
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void draw();
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private:
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// not implemented
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TL2LAutocloser(const TL2LAutocloser &);
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const TL2LAutocloser &operator=(const TL2LAutocloser &);
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};
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//---------------------------------------------------------------------------------------
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#endif // T_L2LAUTOCLOSER_H
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